Solidworks api use - How to select reference dimension (assembly file)

Hello Everyone

Solidworks api use   (assembly file)

-  I can select some reference dimensions of main assembly file.

- I can get all selected reference dimensions information   (Exm:  full name dimension and tolerance ) reference dimension  (main assembly file sub assembly file parts)

-Assembly file included sub assembly  and parts.

I have one problem - Solidworks api use - I can"t  select some reference dimensions of sub assembly file and sub assembly file into included parts dimension.

I tested API and MACRO.

Result is same.

Have any idea

Help me

SolidworksApi/macros